Lenze 00408456 EVS9327-ES 9300 Servo Drive 11 kW
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Product Information
The Lenze 00408456 (model designation EVS9327-ES) is an 11 kW three-phase industrial servo drive from the Lenze 9300 Servo series designed for dynamic multi-axis motion control and precise positioning applications. Operating across a 3-phase AC supply voltage range of 320 V to 528 V AC (nominal 400/480 V AC), this servo inverter provides a continuous output current of 23.5 A and supports a 150% peak overload capacity up to 35.3 A for 60 seconds. Utilizing field-oriented vector control technology, the unit manages synchronous and asynchronous servo motors across an output frequency range of 0 to 480 Hz. The -ES hardware variant specifies an integrated resolver feedback interface via terminal connector X7, providing precise motor shaft feedback for high-speed material handling, packaging lines, and web tension control systems.
Integrating a replacement EVS9327-ES unit into an existing machine requires proper matching of hardware configurations and parameter sets before commissioning. The drive features an onboard CAN-based Lenze System Bus operating at up to 500 kbit/s, along with an Automation Interface (AIF) slot that accommodates optional plug-in fieldbus communication modules such as PROFIBUS-DP (EMF2133IB) or EtherCAT (EMF2192IB). In addition to fieldbus connectivity, local control is provided via 8 digital inputs, 4 digital outputs, 2 differential analog inputs, and 2 analog outputs. Commissioning a replacement unit involves transferring the parameter configuration from the original drive, which can be performed using Lenze Global Drive Control (GDC) software or an EMZ9371BC operating keypad module. Portable parameter storage modules allow rapid configuration transfer, while ABC Industrial Parts can support technical parameter extraction from damaged units when direct readout is constrained.
Diagnostic conditions and drive states are displayed directly through dual LED indicators located on the front of the unit. A solid green light indicates drive readiness, while a flashing green light shows active operation; solid or flashing red signals an active trip or warning condition. The internal microcontroller maintains an EEPROM fault history log holding the last eight fault events, accessible via GDC software or the EMZ9371BC keypad. Diagnostic codes cover various external and operational conditions, including resolver feedback errors (Sd1), overvoltage (OU), undervoltage (LU), phase short circuits (OC1), and temperature trips (OH, OH4, OH7). When facing internal power stage failures, component-level faults, or persistent hardware errors such as code H05, field repair is typically unfeasible and immediate substitution with a fully tested replacement from ABC Industrial Parts offers the most reliable route to restore machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00408456 |
| Model / Type | EVS9327-ES |
| Component Type | Servo Drive |
| Rated Power | 11 kW |
| Supply Voltage Range | 320 - 528 V AC (3-phase) |
| Rated Output Current | 23.5 A |
| Peak Output Current | 35.3 A (150% for 60 s) |
| Output Voltage | 0 - 480 V AC |
| Output Frequency Range | 0 - 480 Hz |
| Switching Frequency | 8 kHz |
| Control Method | Field-oriented vector control |
| Motor Feedback Interface | Resolver (Connector X7) |
| Digital Inputs | 8 |
| Digital Outputs | 4 |
| Analog Inputs | 2 (differential) |
| Analog Outputs | 2 |
| Onboard Fieldbus | CAN Lenze System Bus (up to 500 kbit/s) |
| Extension Slot | Automation Interface (AIF) for optional fieldbus modules |
Programming and Configuration
Parameter setting and commissioning for the Lenze EVS9327-ES servo drive are managed through the Lenze Global Drive Control (GDC) software application or via the plug-in EMZ9371BC keypad operating module. GDC allows complete access to the drive's parameter structure, field-oriented vector control settings, speed loop tuning, dynamic acceleration ramps, and input/output mapping.
The drive incorporates non-volatile EEPROM memory for parameter retention during power loss. Commissioning a spare unit requires backing up the active parameter set from the existing drive and transferring it to the replacement unit. When replacing drives in network-controlled machinery, matching parameter settings—including node addresses, system bus baud rates, motor thermal profiles, and switching frequency configurations—is necessary to maintain dynamic motion alignment across axes.
Communication and System Integration
The Lenze 00408456 EVS9327-ES features an integrated CAN-based Lenze System Bus operating at transmission speeds up to 500 kbit/s. This peer-to-peer network interface enables synchronized multi-axis control, speed target distribution, and status word exchange between multiple 9300 series drives without requiring external bus couplers.
For higher-level PLC and industrial network integration, the drive includes a dedicated Automation Interface (AIF) slot. This slot accepts optional plug-in fieldbus modules, including the EMF2133IB PROFIBUS module and EMF2192IB EtherCAT module, as well as Interbus and DeviceNet options. Additionally, terminal interfaces support master frequency input targets, frequency simulation outputs for cascaded axis configurations, and incremental encoder signals alongside standard digital and analog I/O terminals.
Diagnostics and Status Indication
The EVS9327-ES provides real-time operational status monitoring and fault identification through onboard LED indicators, fieldbus status words, and digital diagnostic outputs. Diagnostic messages are stored in an internal EEPROM fault memory buffer that retains the last eight error codes with associated operational data, allowing technicians to analyze trip history even after power cycles.
Detailed diagnostic analysis and parameter monitoring can be conducted via Global Drive Control (GDC) software connected through a PC interface module, or directly on the machine panel using the optional EMZ9371BC keypad display module. System bus status words also pass active trip state bits directly to the host controller over CAN or fieldbus networks.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| Green LED (DRIVE READY) | Green - Solid / Flashing / Off | Solid: Drive operational and ready; Flashing: Drive in operation / running; Off: Fault present or supply missing. |
| Red LED (DRIVE ERROR) | Red - Solid / Flashing / Off | Solid: Active trip/fault condition present; Flashing: Warning active; Off: Normal operation without active trip. |
Replacement and Spare Part Considerations
When replacing a Lenze 00408456 drive, verifying the exact model code EVS9327-ES is essential. The -ES hardware variant specifically indicates the inclusion of the resolver feedback interface (connector X7), which is required for closed-loop motion control with Lenze 9300 series resolver-equipped servo motors. Substituting a unit with a different feedback hardware suffix will result in resolver signal faults (code Sd1) and operational failure.
Before installing a replacement drive, ensure that any installed fieldbus option module (such as PROFIBUS EMF2133IB or EtherCAT EMF2192IB) is transferred from the original unit to the replacement's AIF slot. Verify physical seating and secure module retention screws to prevent communication trip code CE0. Parameter configurations, including CAN node IDs and communication baud rates, must be uploaded to the new unit via GDC software or the EMZ9371BC keypad before enabling the power stage.
Because the Lenze 9300 Servo series is officially discontinued by the manufacturer, direct hardware replacements are sourced from specialized spare parts stock. For future system modernization, Lenze designates the i950 Cabinet Servo Inverter series as the official successor. However, retaining the original EVS9327-ES drive avoids cabinet redesign, wiring modifications, and extensive control system reprogramming.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| OC1 | Short Circuit | Short circuit on motor output terminals or phase-to-phase short circuit. | Short circuit in motor cable, motor winding isolation breakdown, or excessively fast acceleration ramp. | Check motor cable and motor windings for short circuit or ground connection. Check drive output power stage. If fault remains with motor disconnected, internal power stage failure requires unit repair. |
| OC2 | Earth Fault | Ground fault / earth fault detected on output phase. | Ground fault in motor lead or motor winding isolation to ground. | Inspect motor cables and insulation resistance of motor to protective earth. If cleared and fault persists, internal current sensor/hardware error requires return for service. |
| OC5 | Ixt Overload | Continuous overload of drive power stage exceeding maximum I x t threshold. | Drive continuously operated beyond rated continuous output current, mechanical blockage, or undersized drive. | Check drive loading, verify motor sizing, eliminate mechanical overload or increase acceleration/deceleration times. |
| OU | Overvoltage DC Bus | DC bus voltage exceeded upper limit threshold (> 770 V / 800 V DC). | Excessive regenerative energy during deceleration, brake chopper resistor disconnected or defective, or mains supply voltage too high. | Check braking resistor connection and value, extend deceleration ramp, check mains supply voltage. |
| LU | Undervoltage DC Bus | DC bus voltage dropped below minimum threshold (< 400 V / 285 V DC). | Mains supply voltage drop, phase failure, or supply interruption. | Verify incoming AC line supply voltage and fuses. Check line contactor and wiring. |
| OH | Heatsink Overtemperature | Drive heatsink temperature exceeded maximum allowable limit (> 85 °C / 90 °C). | Cabinet cooling fan defective, heatsink clogged with dust, ambient temperature inside cabinet too high. | Clean heatsink fins, verify operation of internal enclosure cooling fans, lower ambient temperature. |
| OH4 | Motor Overtemperature | Motor thermal sensor input activated (PTC or thermal contact trip). | Motor thermal overload, insufficient motor cooling, or PTC wiring open circuit. | Allow motor to cool, check motor load, verify connection of motor PTC/thermal switch to drive terminals. |
| OH7 | Internal Drive Overtemperature | Drive internal control board ambient temperature limit exceeded. | Control cabinet interior temperature too high or internal ventilation blocked. | Improve enclosure ventilation and cabinet air flow. |
| CE0 | AIF Communication Error | Communication breakdown between drive control board and Automation Interface module in slot AIF. | AIF module missing, improperly seated, or fieldbus communication timeout. | Check physical seat of module in AIF slot, verify fieldbus master status and cable shield connection. |
| CE1 | System Bus Communication Error | System bus (CAN) communication fault or bus off state. | CAN bus wiring short/open, incorrect bus termination resistors, or baud rate mismatch. | Check system bus CAN wiring, verify 120 ohm bus termination at both ends, verify CAN node IDs and baud rates. |
| EEr | EEPROM Fault | EEPROM memory error or parameter checksum failure. | Electromagnetic interference during write operation or hardware memory corruption. | Reload default factory parameter set and reconfigure drive. If error persists after power cycle, internal memory hardware is defective requiring replacement. |
| H05 | Internal Hardware Fault | Internal electronic board failure or microcontroller self-test error. | Hardware component failure on main control board or power board. | Internal hardware fault — return unit to manufacturer or authorized service center for repair. |
| Sd1 | Resolver Signal Error | Resolver feedback signal fault or cable break detected at connector X7. | Defective resolver cable, loose connector pin, or faulty resolver sensor in motor. | Inspect resolver wiring and connector X7, test resolver windings for proper resistance, check shield connection. |
| NMAX | Overspeed | Motor speed exceeded maximum configured speed limit. | Uncontrolled load acceleration, incorrect speed controller tuning, or improper encoder feedback settings. | Check speed feedback configuration, optimize speed loop gains, ensure mechanical load is controlled. |
Frequently Asked Questions
How do I transfer parameter settings to a replacement Lenze EVS9327-ES drive?
Parameter sets can be backed up and downloaded using Lenze Global Drive Control (GDC) software via a PC interface, or copied using an optional EMZ9371BC keypad module or portable parameter storage module.
What does fault code Sd1 indicate on the EVS9327-ES servo drive?
Code Sd1 indicates a resolver feedback signal error or broken connection at connector X7. Check the resolver cable wiring, connector seating, shield grounding, and motor resolver winding resistance.
Can the EVS9327-ES drive communicate over fieldbus networks like PROFIBUS or EtherCAT?
Yes. While the drive includes an onboard CAN-based Lenze System Bus as standard, it features an Automation Interface (AIF) slot that supports plug-in fieldbus modules such as the EMF2133IB for PROFIBUS-DP or EMF2192IB for EtherCAT.
What should be done if the drive displays fault code H05?
Code H05 indicates an internal hardware fault or microcontroller self-test failure on the main control or power board. This internal fault cannot be resolved in the field and requires unit repair or replacement.
What is the significance of the -ES suffix in the EVS9327-ES model number?
The -ES suffix indicates the hardware variant equipped with a standard resolver feedback interface at connector X7, designed for closed-loop operation with resolver-equipped servo motors.
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